MOUNTAIN HOME -- Mountain Home Air Force Base was placed on lockdown early Wednesday in response to what officials termed a "real-world incident."

The base later clarified the lockdown was in response to a false report of an active shooter firing shots on the base at about 4 a.m.

Mountain Home Air Force Base had announced Tuesday that the base would be conducting 24-hour "readiness training" all this week "to prepare for real world contingencies."

Col. Joseph Kunkel said the training was mistaken for a real emergency.

"Unfortunately this morning we had an exercise inject that was misinterpreted as a real world scenario, so out of an abundance of caution we conducted a real world response to what was ultimately an exercise inject."

The lockdown was lifted shortly before 6 a.m., and the gate to the base is now open.

No one at the base was hurt.

The MHAFB earlier told all base personnel not to report to work until the lockdown was lifted.

"There is a real-world incident happening on base. Please listen and heed the messages from the Big Voice and ATHOC," Air Force officials posted on the MHAFB official Facebook. "Security Forces are trained and responding. Check back to this page for updates."